[Bug 253687] [hwpmc] kernel panic when listing available hardware performance counters

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 02 Jul 2021 00:51:14 UTC

--- Comment #6 from Zhenlei Huang <zlei.huang@gmail.com> ---
(In reply to Mitchell Horne from comment #5)

# kldload hwpmc cpuctl
# sysctl kern.hwpmc.cpuid
kern.hwpmc.cpuid: GenuineIntel-6-3D-4

# cpucontrol -i 0xA /dev/cpuctl0
cpuid level 0xa: 0x07300403 0x00000000 0x00000000 0x00000603

Some info about the host:
The host is MacBook Pro(Retina, 13-inch, Early 2015), the model identifier is
MacBookPro12,1, and the processor is 2.7 GHz Dual-Core Intel Core i5.

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